Universal welding tool for forklift portal

Abstract

The utility model discloses a universal welding tool for a forklift gantry. Comprising a bottom frame, a foot plate, a positioner, a gear set, a connecting flange, a rotating disc, an L-shaped plate, a main bracket, a clamp sliding rail mounting plate, a clamp sliding rail, a drag chain frame, a drag chain, a clamp mounting block, a pressing clamp, a connecting plate, an air cylinder mounting plate, a pressing air cylinder, a limiting air cylinder frame, a lifting limiting air cylinder, an extrusion limiting air cylinder, an extrusion block, a limiting frame mounting plate, a limiting block and a sliding frame mounting frame. A carriage mounting frame reinforcing rib, a bracket, a carriage and a carriage limiting cylinder are included. Compared with the prior art, the universal assembling and welding tool is adopted to meet the design size requirements of different forklift gantries, the manufacturing precision of the whole forklift is guaranteed, the whole production process of the forklift gantries can be changed, manual lap welding, correction and secondary clamping processes are omitted, the production efficiency and the welding quality of the gantries can be obviously improved, time and labor are saved, and the production cost is reduced. And the tool is high in universality, so that the manufacturing cost of the tool is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of welding auxiliary equipment, in particular to a universal welding tooling for forklift masts. Background Art

[0002] The mast doors need to be parallel to each other, and the roller shafts welded on the two side mast columns also need to be coaxial. During traditional welding, manual tack welding, repeated clamping and calibration processes are required, thus reducing the manufacturing accuracy and production efficiency of the masts. There are many types of masts required for the same model of vehicle. Since the external dimensions of the masts are large, if a special group welding tooling is designed for each group of masts, the investment cost is high and the floor area is also large; but if a simple tooling is used for manual tack welding, calibration and secondary clamping, the dimensional accuracy is not easy to guarantee and the production efficiency is also low. Traditional mast welding requires welding one side first, then disassembling and welding the other side. There is a large welding deformation during the welding of the second side, which affects the welding quality and at the same time affects the welding efficiency. Summary of the Utility Model

[0003] In view of the problems existing in the prior art, the utility model discloses a universal welding tooling for forklift mast, which comprises a chassis, a foot plate, a positioner, a gear set, a connecting flange, a rotating disc, an L-shaped plate, a main bracket, a fixture slide rail mounting plate, a fixture slide rail, a drag chain bracket, a drag chain, a fixture mounting block, a pressing fixture, a connecting plate, a cylinder mounting plate, a pressing cylinder, a limit cylinder bracket, a lifting limit cylinder, a pressing limit cylinder, a pressing block, a limit bracket mounting plate, a limit block, a carriage mounting frame, a carriage mounting frame reinforcing rib, a bracket, a carriage, and a carriage limit cylinder; a plurality of foot plates are installed on the front and rear sides of the lower side of the chassis; the positioners are installed on the left and right sides of the upper surface of the chassis, a rotating motor is arranged inside the left positioner, and its motor shaft passes through the positioner and is equipped with a gear set; the connecting flange is installed on the large gear of the gear set; the rotating disc is installed on the left side surface of the right positioner; the L-shaped plate is installed on the connecting flange and the rotating disc; the main bracket is a rectangular frame and is fixedly installed on the L-shaped plate on the left and right sides respectively; the fixture slide rail mounting plate is installed on the front and rear side surfaces of the main bracket, and a fixture slide rail is fixedly installed thereon; two fixture slide blocks are installed on the fixture slide rail, and a fixture mounting block is installed on the slide block; the pressing fixture passes through the fixture mounting block and abuts against the fixture slide rail mounting plate; the drag chain bracket is installed on the rear side of the main bracket, and a drag chain is installed thereon; the connecting plate is installed at the center of the upper side of the main bracket, and a cylinder mounting plate is installed thereon; the pressing cylinder is installed on the cylinder mounting plate; the limit bracket mounting plate is installed on the upper surface of the right side of the main bracket and the fixture mounting block, two limit blocks are installed at the front and rear ends of the upper side surface thereof respectively, and a limit cylinder bracket is installed on the lower side surface; the lifting limit cylinder is installed inside the front side of the limit cylinder bracket, and its cylinder rod extends out of the limit bracket mounting plate and is located above the front limit block; a limit guide rail is arranged inside the rear side of the limit cylinder bracket, and a limit slide block is installed on the limit guide rail; the pressing limit cylinder is installed on the lower side surface of the limit cylinder bracket, and a pressing block is installed at the end of its cylinder rod; a connecting plate is installed on the upper side of the pressing block and is installed on the limit slide block; the carriage mounting frame is installed at the center of the lower side surface of the main bracket, and carriage mounting frame reinforcing ribs are installed on the front and rear sides of its upper surface; a bracket is installed at the right end of the carriage mounting frame reinforcing rib; a plurality of connecting plates are arranged on the lower side surface of the carriage mounting frame, and a carriage is installed on the connecting plate; the carriage limit cylinder is installed on the lower side of the connecting plate and is located outside the carriage.

[0004] As a preferred technical solution of the utility model, the pressing fixture is manual, and when the handle rotates upward, the internal pressure rod presses against the fixture slide rail mounting plate.

[0005] As a preferred technical solution of the utility model, one end of the drag chain is fixed on the drag chain bracket, and the other end is fixed on the rear side of the upper surface of the left limit bracket mounting plate.

[0006] As a preferred technical solution of the utility model, the top end of the pressing block extends out of the limit bracket mounting plate and faces the rear limit block.

[0007] As a preferred technical solution of the present utility model, the lower connecting plates of the carriage mounting frame are all rectangular connecting plates, one end of which is flush with the outer wall of the carriage mounting frame, and the other end faces the inner side of the carriage mounting frame.

[0008] Advantages of the present utility model: The present utility model adopts a general group welding tooling to meet the design size requirements of different forklift masts, ensuring the manufacturing precision of the whole vehicle. It can change the entire production process of the forklift mast, cancel the manual butt welding, correction and secondary clamping processes, significantly improve the production efficiency and the welding quality of the mast, save time and effort, and the tooling has strong versatility, saving the tooling manufacturing cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. In all the drawings, the elements or parts do not necessarily draw according to the actual ratio.

[0010] Figure 1 is a three-dimensional schematic diagram of the present utility model;

[0011] Figure 2 is a three-dimensional schematic diagram of the main bracket structure of the present utility model;

[0012] Figure 3 is a three-dimensional schematic diagram of the limit structure of the present utility model;

[0013] Figure 4 is a three-dimensional schematic diagram of the carriage structure of the present utility model;

[0014] In the figure: chassis 1, foot plate 2, positioner 3, gear set 4, connecting flange 5, rotating disk 6, L plate 7, main bracket 8, fixture slide rail mounting plate 9, fixture slide rail 10, drag chain bracket 11, drag chain 12, fixture mounting block 13, clamping fixture 14, connecting plate 15, cylinder mounting plate 16, clamping cylinder 17, limit cylinder bracket 18, lifting limit cylinder 19, extrusion limit cylinder 20, extrusion block 21, limit bracket mounting plate 22, limit block 23, carriage mounting frame 24, carriage mounting frame reinforcing rib 25, bracket 26, carriage 27, carriage limit cylinder 28. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0015] Embodiment 1

[0016] As Figures 1 to 4As shown in the figure, the utility model discloses a general welding tooling for forklift mast, which includes a chassis 1, foot plates 2, a positioner 3, a gear set 4, a connecting flange 5, a rotating disk 6, an L-shaped plate 7, a main bracket 8, a fixture slide rail mounting plate 9, a fixture slide rail 10, a drag chain bracket 11, a drag chain 12, a fixture mounting block 13, a clamping fixture 14, a connecting plate 15, a cylinder mounting plate 16, a clamping cylinder 17, a limit cylinder bracket 18, a lifting limit cylinder 19, a squeezing limit cylinder 20, a squeezing block 21, a limit bracket mounting plate 22, a limit block 23, a carriage mounting frame 24, a carriage mounting frame reinforcing rib 25, a bracket 26, a carriage 27, and a carriage limit cylinder 28. A plurality of foot plates 2 are installed on the front and rear sides of the lower side of the chassis 1. The positioner 3 is installed on the left and right sides of the upper surface of the chassis 1. A rotating motor is provided inside the left positioner 3, and its motor shaft passes through the positioner 3 and is equipped with a gear set 4. The connecting flange 5 is installed on the large gear of the gear set 4. The rotating disk 6 is installed on the left side surface of the right positioner 3. The L-shaped plate 7 is installed on the connecting flange 5 and the rotating disk 6. The main bracket 8 is a rectangular frame and is fixedly installed on the L-shaped plate 7 on the left and right sides respectively. The fixture slide rail mounting plate 9 is installed on the front and rear side surfaces of the main bracket 8, and a fixture slide rail 10 is fixedly installed thereon. Two fixture sliders are equipped on the fixture slide rail 10, and a fixture mounting block 13 is installed on the slider. The clamping fixture 14 passes through the fixture mounting block 13 and abuts against the fixture slide rail mounting plate 9. The drag chain bracket 11 is installed on the rear side of the main bracket 8, and a drag chain 12 is equipped thereon. The connecting plate 15 is installed in the center of the upper side of the main bracket 8, and a cylinder mounting plate 16 is installed thereon. The clamping cylinder 17 is installed on the cylinder mounting plate 16. The limit bracket mounting plate 22 is installed on the upper surface of the right side of the main bracket 8 and the fixture mounting block 13. One limit block 23 is installed at each of the front and rear ends of the upper side surface thereof, and a limit cylinder bracket 18 is installed on the lower side surface. The lifting limit cylinder 19 is installed inside the front side of the limit cylinder bracket 18, and its cylinder rod extends out of the limit bracket mounting plate 22 and is located above the front limit block 23. A limit guide rail is provided at the rear side inside the limit cylinder bracket 18, and a limit slider is equipped on the limit guide rail. The squeezing limit cylinder 20 is installed on the lower side surface of the limit cylinder bracket 18, and a squeezing block 21 is installed at the end of its cylinder rod. A connecting plate is equipped on the upper side of the squeezing block 21 and is installed on the limit slider. The carriage mounting frame 24 is installed in the center of the lower side surface of the main bracket 8, and carriage mounting frame reinforcing ribs 25 are installed on the front and rear sides of its upper surface. A bracket 26 is installed at the right end of the carriage mounting frame reinforcing rib 25. A plurality of connecting plates are provided on the lower side surface of the carriage mounting frame 24, and a carriage 27 is installed on the connecting plate. The carriage limit cylinder 28 is installed on the lower side of the connecting plate and is located outside the carriage 27. The clamping fixture 14 is manual. When the handle is rotated upward, the internal pressure rod is pressed against the fixture slide rail mounting plate 9, and the left limit structure can be manually moved, which is convenient for installing and clamping workpieces of different sizes. The lifting limit cylinder 19 and the squeezing limit cylinder 20 are provided and cooperate with the front and rear limit blocks 23 respectively to press and fix the workpiece.

[0017] Working principle of the utility model: When the utility model is in use, the right end of the workpiece to be welded is fixedly installed on the limiting structure on the right side, and the lifting limiting cylinder 19 and the extrusion limiting cylinder 20 are used to position and clamp the right end. Then, the position of the left limiting structure is adjusted to move it to the lower side of the workpiece. Then, the handle of the pressing fixture 14 is pulled to press it on the fixture slide rail mounting plate 9 to fix the left limiting structure. Then, the lifting limiting cylinder 19 and the extrusion limiting cylinder 20 are used to position and clamp the left end of the workpiece. A number of screw holes are provided on the main bracket 8, and the limiting structure can be flexibly installed, which is suitable for welding workpieces of different sizes. The rotation of the motor in the positioner 3 can drive the L plate 7 to rotate through the gear set, so as to change the angle of the workpiece on the main bracket 8, make the weld seam always face the welding robot, reduce manual flipping, and reduce the working intensity.

[0018] The components not described in detail in this article are prior art.

[0019] Although the specific embodiments of the utility model are described in detail above, the utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art, various changes can be made without departing from the purpose of the utility model, and the modifications or deformations without creative labor are still within the protection scope of the utility model.

Claims

1. A universal welding tool for a forklift mast, characterized by: The invention comprises a base frame (1), a foot plate (2), a positioner (3), a gear set (4), a connecting flange (5), a rotating disk (6), an L plate (7), a main bracket (8), a fixture slide rail mounting plate (9), a fixture slide rail (10), a drag chain frame (11), a drag chain (12), a fixture mounting block (13), a clamping fixture (14), a connecting plate (15), a cylinder mounting plate (16), a clamping cylinder (17), a limit cylinder frame (18), a lifting limit cylinder (19), an extrusion limit cylinder (20), an extrusion block (21), a limit frame mounting plate (22), a limit block (23), a slide frame mounting frame (24), a slide frame mounting frame reinforcement rib (25), a bracket (26), a slide frame (27), and a slide frame limit cylinder (28); the base frame (1) A plurality of foot plates (2) are installed on the front and rear sides of the lower side; the positioner (3) is installed on the left and right sides of the upper surface of the base frame (1); a rotating motor is arranged in the left positioner (3), and the motor shaft thereof passes through the positioner (3) and is equipped with a gear set (4); the connecting flange (5) is installed on the large gear of the gear set (4); the rotating disk (6) is installed on the left side of the right positioner (3); the L plate (7) is installed on the connecting flange (5) and the rotating disk (6); the main bracket (8) is a rectangular frame, and the left and right sides are respectively fixedly installed on the L plate (7); the fixture slide rail mounting plate (9) is installed on the front and rear sides of the main bracket (8), and a fixture slide rail (10) is fixedly installed thereon; two fixture slide rails (10) are equipped on the fixture slide rail (10) The block is provided with a fixture mounting block (13) on the slider; the clamping fixture (14) passes through the fixture mounting block (13) and is supported on the fixture slide rail mounting plate (9); the drag chain frame (11) is installed on the rear side of the main bracket (8), and the drag chain (12) is mounted thereon; the connecting plate (15) is installed at the center of the upper side of the main bracket (8), and a cylinder mounting plate (16) is mounted thereon; the clamping cylinder (17) is installed on the cylinder mounting plate (16); the limit frame mounting plate (22) is installed on the right side of the upper surface of the main bracket (8) and on the fixture mounting block (13), and a limit block (23) is installed at each of the front and rear ends of the upper side surface, and a limit cylinder frame (18) is installed on the lower side surface; the lifting limit cylinder (19) is installed inside the limit cylinder frame (18) On the front side, the cylinder rod thereof extends out of the limit frame mounting plate (22) and is located above the front limit block (23); a limit guide rail is provided on the rear side of the limit cylinder frame (18), and a limit slide block is mounted on the limit guide rail; the extrusion limit cylinder (20) is mounted on the lower side of the limit cylinder frame (18), and an extrusion block (21) is mounted on the end of the cylinder rod; a connecting plate is mounted on the upper side of the extrusion block (21) and is mounted on the limit slide block; the slide mounting frame (24) is mounted at the center of the lower side of the main bracket (8), and a slide mounting frame reinforcement rib (25) is mounted on both the front and rear sides of the upper surface; a bracket (26) is mounted on the right end of the slide mounting frame reinforcement rib (25); a plurality of connecting plates are provided on the lower side of the slide mounting frame (24), and a slide (27) is mounted on the connecting plates;The slide limit cylinder (28) is installed on the lower side of the connecting plate and is located outside the slide (27).

2. The universal welding tool for forklift mast according to claim 1, characterized in that: The clamping fixture (14) is manual, and the handle is rotated upwards to press the internal pressure rod on the fixture slide rail mounting plate (9).

3. The universal welding tool for forklift mast according to claim 1, characterized in that: One end of the drag chain (12) is fixed on the drag chain frame (11), and the other end is fixed on the rear side of the upper surface of the left limit frame mounting plate (22).

4. The universal welding tool for forklift mast according to claim 1, characterized in that: The top end of the extrusion block (21) extends out of the limit frame mounting plate (22) and faces the rear limit block (23).

5. The universal welding tool for forklift mast according to claim 1, characterized in that: The connecting plates at the lower side of the slide mounting frame (24) are all rectangular connecting plates, one end of which is flush with the outer wall of the slide mounting frame (24) and the other end faces the inner side of the slide mounting frame (24).

Images